Best H&S mode for fuel mileage? - Ford Powerstroke Diesel Forum
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post #1 of 17 Old 12-21-2012, 10:55 AM Thread Starter
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Best H&S mode for fuel mileage?

I have not yet done the delete, but have the pipes to. I also added an S&B intake. What setting is everyone seeing the best daily driving mileage on? So far, the hot seems to be worse than stock, wild and mild seem to be about the same.
Will I see much gains after deleting?
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post #2 of 17 Old 12-21-2012, 12:24 PM
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Originally Posted by cmb396 View Post
I have not yet done the delete, but have the pipes to. I also added an S&B intake. What setting is everyone seeing the best daily driving mileage on? So far, the hot seems to be worse than stock, wild and mild seem to be about the same.
Will I see much gains after deleting?
I see best mileage on hot. If I keep my foot out of it.

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post #3 of 17 Old 12-21-2012, 06:57 PM
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16mpg on MILD(city). Haven't played with WILD or HOT.



H&S MinniMaxx
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post #4 of 17 Old 12-21-2012, 07:17 PM
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I think my computer is pretty close, I'm averaging 18.7 mixed city/highway driving like a sissy on hot. I think the variable has to be lift/tire size. I'm on stock size Nitto Terra Grapplers with factory 20s, Readylift 3.5" in front and 5" blocks on back.

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Probably one of those deals that you ask 10 guys and get 10 different answers. I'm keeping what I have. I like the look, I like the sound. I don't think you would ever notice the difference on the street. Maybe on the dyno, but I don't ride there.
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post #5 of 17 Old 12-22-2012, 08:02 AM Thread Starter
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Im running stock tires for the winter, and just did my first hand calculated mileage, funny, the computer was dead on. Running at mild, road trip that was 300 miles highway around 60-65, and 50 miles city, i got 16.1 mpg on mild tune. I woulda thought to it would have been much better than that. This was pussy footin around too.
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post #6 of 17 Old 12-26-2012, 05:19 AM
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I see 16mpg city and 21-22mpg highway depending on the speed limit 65-75mph in some places. That highway was based on a recent 1500 mile trip. This is on HOT.

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post #7 of 17 Old 12-26-2012, 07:55 AM Thread Starter
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That;s pretty good Axis! Maybe these WV hills are the reason for the poor mileage??
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post #8 of 17 Old 12-26-2012, 10:45 AM
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Running any level of DPF on tuning is your issue. Tuning with the DPF in place is increasing the soot produced by the engine, increasing the number of regen cycles the truck will need. Get rid of the DPF and you will see the gains. Dad has a Stock '11 and he gets about 15-17 hand calculated running around in the southern part of WV with a 4" lift (but still has stock tires)
What part of wv you in?

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post #9 of 17 Old 12-28-2012, 03:27 PM Thread Starter
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Just ran a tank of city driving, with some serious pussy footin around and got 13.1 mpg running on hot!! Not too impressed with this Mini Maxx so far!!
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post #10 of 17 Old 12-29-2012, 08:29 AM
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Get the DPF off...

2009 Subaru WRX Premium
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